TY JOUR TI INFLUENCE OF CARBONATE COMPONENT OF CLAY COMPOSITION ON MICROWAVE SINTERING AND STRENGTH OF CERAMIC MATERIAL KW microwave sintering KW strength KW thermal analysis KW microphotos KW clays KW chalk KW KEK JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Zhenzhurist, I.A. AU Morozova, N.N. PY 2025 IS 10 PB Belgorod State Technological University named after V.G. Shukhov